treewide: Fix function prototypes for module_param_call()

Several function prototypes for the set/get functions defined by
module_param_call() have a slightly wrong argument types. This fixes
those in an effort to clean up the calls when running under type-enforced
compiler instrumentation for CFI. This is the result of running the
following semantic patch:

@match_module_param_call_function@
declarer name module_param_call;
identifier _name, _set_func, _get_func;
expression _arg, _mode;
@@

 module_param_call(_name, _set_func, _get_func, _arg, _mode);

@fix_set_prototype
 depends on match_module_param_call_function@
identifier match_module_param_call_function._set_func;
identifier _val, _param;
type _val_type, _param_type;
@@

 int _set_func(
-_val_type _val
+const char * _val
 ,
-_param_type _param
+const struct kernel_param * _param
 ) { ... }

@fix_get_prototype
 depends on match_module_param_call_function@
identifier match_module_param_call_function._get_func;
identifier _val, _param;
type _val_type, _param_type;
@@

 int _get_func(
-_val_type _val
+char * _val
 ,
-_param_type _param
+const struct kernel_param * _param
 ) { ... }

Two additional by-hand changes are included for places where the above
Coccinelle script didn't notice them:

	drivers/platform/x86/thinkpad_acpi.c
	fs/lockd/svc.c

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jessica Yu <jeyu@kernel.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/media/pci/tw686x/tw686x-core.c b/drivers/media/pci/tw686x/tw686x-core.c
index 336e2f9bc1b6..b762e5f0ba1d 100644
--- a/drivers/media/pci/tw686x/tw686x-core.c
+++ b/drivers/media/pci/tw686x/tw686x-core.c
@@ -72,12 +72,12 @@ static const char *dma_mode_name(unsigned int mode)
 	}
 }
 
-static int tw686x_dma_mode_get(char *buffer, struct kernel_param *kp)
+static int tw686x_dma_mode_get(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "%s", dma_mode_name(dma_mode));
 }
 
-static int tw686x_dma_mode_set(const char *val, struct kernel_param *kp)
+static int tw686x_dma_mode_set(const char *val, const struct kernel_param *kp)
 {
 	if (!strcasecmp(val, dma_mode_name(TW686X_DMA_MODE_MEMCPY)))
 		dma_mode = TW686X_DMA_MODE_MEMCPY;
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 6d22b22cb35b..28b91b7d756f 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2230,7 +2230,7 @@ static int uvc_reset_resume(struct usb_interface *intf)
  * Module parameters
  */
 
-static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
+static int uvc_clock_param_get(char *buffer, const struct kernel_param *kp)
 {
 	if (uvc_clock_param == CLOCK_MONOTONIC)
 		return sprintf(buffer, "CLOCK_MONOTONIC");
@@ -2238,7 +2238,7 @@ static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
 		return sprintf(buffer, "CLOCK_REALTIME");
 }
 
-static int uvc_clock_param_set(const char *val, struct kernel_param *kp)
+static int uvc_clock_param_set(const char *val, const struct kernel_param *kp)
 {
 	if (strncasecmp(val, "clock_", strlen("clock_")) == 0)
 		val += strlen("clock_");